نتایج جستجو برای: fishing

تعداد نتایج: 13282  

2016
KangJae Jerry Lee David Scott Myron F. Floyd Michael B. Edwards

Using the multiple hierarchy stratification perspective (MHSP), this paper investigated Americans’ freshwater and saltwater fishing participation in 2011. Data from the 2011 National Survey of Fishing, Hunting, and Wildlife-Associated Recreation were examined using two hierarchical generalized linear models. Level 1 variables were age, education, sex (male, female), income, and race/ethnicity. ...

2009
ANNA KARPOWICZ

In this paper we consider the following problem. An angler buys a fishing ticket that allows him/her to fish for a fixed time. There are two locations to fish at the lake. The fish are caught according to a renewal process, which is different for each fishing location. The angler’s success is defined as the difference between the utility function, which is dependent on the size of the fish caug...

1999
S. F. THRUSH J. E. HEWITT V. J. CUMMINGS P. K. DAYTON M. CRYER S. J. TURNER G. A. FUNNELL R. G. BUDD C. J. MILBURN M. R. WILKINSON

Commercial fishing is one of the most important human impacts on the marine benthic environment. One such impact is through disturbance to benthic habitats as fishing gear (trawls and dredges) are dragged across the seafloor. While the direct effects of such an impact on benthic communities appear obvious, the magnitude of the effects has been very difficult to evaluate. Experimental fishing-di...

2017
Masaaki Sato Kentaro Honda Wilfredo H Uy Darwin I Baslot Tom G Genovia Yohei Nakamura Lawrence Patrick C Bernardo Hiroyuki Kurokochi Allyn Duvin S Pantallano Chunlan Lian Kazuo Nadaoka Masahiro Nakaoka

The establishment of marine protected areas (MPAs) can often lead to environmental differences between MPAs and fishing zones. To determine the effects on marine dispersal of environmental dissimilarity between an MPA and fishing zone, we examined the abundance and recruitment patterns of two anemonefishes (Amphiprion frenatus and A. perideraion) that inhabit sea anemones in different managemen...

2012
Gustavo M. Martins Francisco Arenas Ana I. Neto Stuart R. Jenkins

The potential population and community level impacts of fishing have received considerable attention, but little is known about how fishing influences communities' functional diversity at regional scales. We examined how estimates of functional diversity differed among 25 regions of variable richness and investigated the functional consequences of removing species targeted by commercial fisheri...

Journal: :Molecules 2016
Rongjie Zhuo Hao Liu Ningning Liu Yi Wang

Identification of active compounds from natural products is a critical and challenging task in drug discovery pipelines. Besides commonly used bio-guided screening approaches, affinity selection strategy coupled with liquid chromatography or mass spectrometry, known as ligand fishing, has been gaining increasing interest from researchers. In this review, we summarized this emerging strategy and...

Journal: :Science 2007
J R Beddington D J Agnew C W Clark

The public perception of fisheries is that they are in crisis and have been for some time. Numerous scientific and popular articles have pointed to the failures of fisheries management that have caused this crisis. These are widely accepted to be overcapacity in fishing fleets, a failure to take the ecosystem effects of fishing into account, and a failure to enforce unpalatable but necessary re...

2007
Joanna Vince

Illegal, unreported and unregulated (IUU) fishing activities continue to thrive in the northern region of Australia’s Fishing Zone (AFZ). Indonesian fishermen involved in IUU fishing in this area target specific marine species such as shark, reef fish, sea cucumber and trochus that are destined for the Asian market. Many of these marine species’ stocks are now at critical levels. Local communit...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2015
Timothy E Essington Margaret C Siple Emma E Hodgson Laura E Koehn Pamela E Moriarty Kiva L Oken Christine C Stawitz

In response to our recent paper (1), Szuwalski and Hilborn (2) make several points about the timing of recruitment failures, the effect of fishing on productivity, and our choice of using biomass, not recruitment, as the indicator for collapses. We address these points here to show that not only do they not affect our conclusions, but that we are largely in agreement regarding the biological pr...

Journal: :international journal of advanced biological and biomedical research 2014
syed ehsan hosseini gholamreza din panah

the aim of this study was to determine influencing factors on participation of fishermen member cooperative in sustainable fishing in golestan province. the methodological approach of this study was descriptive- correlative. the research population consisted of 144 fishermen who member cooperative, which were selected using census method. validity of the instrument was established by a panel of...

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